Step 2 of 6 · Sleep Optimization Protocol
Last coffee math
Last coffee math — step 2 of 6 in Sleep Optimization Protocol. Caffeine's half-life is often 5–6 hours. Bed at 11? 3pm is a safer last cup for a lot of people. Sensitive? Noon.

Free health & fitness tip: Last coffee math (step 2 of 6 from "Sleep Optimization Protocol").
Caffeine's half-life is often 5–6 hours. Bed at 11? 3pm is a safer last cup for a lot of people. Sensitive? Noon.
Alcohol may knock you out and then shred the second half of the night. If you drink, earlier, and don't stack it with a shame spiral about a wrist score of 64.
You'll need
- Wake time written
- Caffeine cutoff written
- Morning light planned
1 more paragraph in this tip — free with a Learnlyst account.
Create a free account to read the full tip
Unlock “Last coffee math” plus daily tips. Guides and course pages stay public for search.
From the full photographed course
Sleep Optimization Protocol →This tip is one step — unlock all 6 steps inside Learnlyst.
More Health & Fitness tips
Ready for the full Learnlyst library?
Free account for daily tips · $9/mo or $79/yr for every course.



